Mechanism for raising the weights of drawing-rollers



(No Model.)

B. LUCAS. MECHANISM FOR RAISING THE WEIGHTSDF DRAWING ROLLERS. No.460,302.

Patented Sept. 29, 1891.

nouns vrrzns $11., moroin the combination and UNITED STATES PATENTOEEIcE.

ROBERT LUCAS, OF MACON, GEORGIA.

MECHANISM FOR RAISING THE WEIGHTS OF DRAWING-ROLLERS.

SPECIFICATION forming part of Letters Patent No. 460,302, datedSeptember 29, 18911. Application filed February 13, 1891- Serial No.381,330. (No model.)

To all whom it may concern.-

Be it known that I, ROBERT LUCAS, of Macon, in the county of Bibb andState of Georgia, have invented certain new and useful Improvements inMechanism for Raising the WVeights of Drawing-Rollers; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itpertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specification.

My invention relates to an improvement in mechanism for raising theweights in cotton, Woolen, or worsted machinery; and it consistsconstruction of parts which will be fully described hereinafter, andparticularly referred to in the claim.

The object of myinvention is to provide a means whereby all of theweights can belifted from the top rolls at the same time, thus savingtime, labor, and covering'for the rolls, and troublein removing andreplacingthetoprolls;

Figure 1 is a vertical section taken through the top rolls of a cotton,woolen, or worsted spinning or twisting machine, to which my inventionis applied. Fig. 2 is a detail view of the same.

A represents the top roll; B, the bottom roll; 0, the usual top hookswhich catch over the top rolls; D, the bottom hooks, and F the Weights,which are hung upon the hooks D in the usual manner.

Extending transversely across the frame below the top rolls and belowthe lower ends of the top hooks O are the bearings G, which formsupports orbearings for the rod H, which extends parallel with therolls. For each set of Weights there is a lever I, which is supported atits rear end upon the rod H, and each lBVGl" extends across under therolls and engages with the bottom hooks in any suitable manner, so thatall of that set of hooks and weights can be raised, so that the top rollwill be freed from them all at once.

The front end of each of the levers Iis preferably shaped as shown, andrests upon the rod .I, which is secured by brackets L to the angularshaft 0, which is supported upon the opposite end of the bearing G fromthe rod H. This shaft 0 has secured to one end a worm or other suitablewheel P, by means of which the shaft is made to revolve for the purposeof causing the rod .Ito sweep through a portion of a circle, and thusact as a cam to raise oneend of all the levers I at the sametime. Thewheel P is preferably operated by a worm Q, which is journaled in asuitable frame R and provided with a handle S. By turning the handle theshaft is made to revolve, and as the rod J sweeps around the front endsof the levers I are raised and lowered at will for the purpose ofapplying the weights to or removing them from the top rolls all at once.

By means of the mechanism here shown and described the weights can beraised to any desired height, or can be raised just high enough to takethe top hooks off without the bottom hooks falling down, thus saving theoperator the time and trouble of raising the weights by hand whenputting on the top roll ers.. This construction also effects a greatsaving in the covering of the rolls, for the weights can all be raisedwhen not in use, and saves time and trouble in taking the rollers outand returning them to position, as no skilled labor is required.

Having thus described my invention, I claim- In a device of thecharacter described, a supporting-frame, levers pivoted therein at oneend, a shaftjournaled in the opposite end of the said frame, carrying aneccentric or crank which the free ends of the levers engage, a cog-wheelsecured to the said shaft, 2. U- shaped frame secured to thesupporting-frame and carrying a worm-gear which engages the said wheel,the rolls, weights connected with the rolls, and stops connected withthe weights which engage the upper sides of the levers, the partscombined substantially as shown and described.

In testimony whereofIaffiX mysignature in presence of two witnesses.

- ROBERT LUCAS. W'itnesses:

E. R. IVIITCHELL, W. M. BREVARD.

